Bike Forums - View Single Post - old bottle generators and lamps

08-09-11 | 06:47 AM

#12

Doohickie

You gonna eat that?

Joined: Sep 2008

Posts: 14,917

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From: Fort Worth, Texas Church of Hopeful Uncertainty

Bikes: 1966 Raleigh DL-1 Tourist, 1973 Schwinn Varsity, 1983 Raleigh Marathon, 1994 Nishiki Sport XRS

Quote:

Originally Posted by fietsbob

back to the basics ... load : 6v, 3w. typical split, 2.4w headlight, + a 0.6w taillight..

[NB: voltage is the same, it's the wattage that is higher front/back,
once shared load is reduced , the remaining filament gets all the power, so overheats]

screw base headlight bulbs^ seem to be quite sparsely available of late.

What is typical of a bottle generator for an old 3-speed? 6V? I measure 13-14, rolling at moderate speed, on mine (if I recall correctly). I think this was loaded (light bulb on). Or is 6V just a nominal and the system is designed to run at a higher voltage?

__________________
I stop for people / whose right of way I honor / but not for no one.

Originally Posted by bragi

"However, it's never a good idea to overgeneralize."

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